com.jme3.system.lwjgl.LwjglDisplay Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jme3-lwjgl Show documentation
Show all versions of jme3-lwjgl Show documentation
jMonkeyEngine is a 3D game engine for adventurous Java developers
/*
* Copyright (c) 2009-2023 jMonkeyEngine
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of 'jMonkeyEngine' nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.jme3.system.lwjgl;
import com.jme3.system.AppSettings;
import com.jme3.system.JmeContext.Type;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.lwjgl.LWJGLException;
import org.lwjgl.opengl.*;
public class LwjglDisplay extends LwjglAbstractDisplay {
private static final Logger logger = Logger.getLogger(LwjglDisplay.class.getName());
private final AtomicBoolean needRestart = new AtomicBoolean(false);
private PixelFormat pixelFormat;
/**
* @param width The required display width
* @param height The required display height
* @param bpp The required bits per pixel. If -1 is passed it will return
* whatever bpp is found
* @param freq The required frequency, if -1 is passed it will return
* whatever frequency is found
* @return The {@link DisplayMode} matches with specified settings or
* return null if no matching display mode is found
*/
protected DisplayMode getFullscreenDisplayMode(int width, int height, int bpp, int freq){
try {
DisplayMode[] modes = Display.getAvailableDisplayModes();
for (DisplayMode mode : modes) {
if (mode.getWidth() == width
&& mode.getHeight() == height
&& (mode.getBitsPerPixel() == bpp || (bpp == 24 && mode.getBitsPerPixel() == 32) || bpp == -1)
// Looks like AWT uses mathematical round to convert floating point
// frequency values to int while lwjgl 2 uses mathematical floor.
// For example if frequency is 59.83, AWT will return 60 but lwjgl2
// will return 59. This is what I observed on Linux. - Ali-RS 2023-1-10
&& (Math.abs(mode.getFrequency() - freq) <= 1 || freq == -1)) {
return mode;
}
}
} catch (LWJGLException ex) {
listener.handleError("Failed to acquire fullscreen display mode!", ex);
}
return null;
}
@Override
protected void createContext(AppSettings settings) throws LWJGLException{
DisplayMode displayMode;
if (settings.getWidth() <= 0 || settings.getHeight() <= 0) {
displayMode = Display.getDesktopDisplayMode();
settings.setResolution(displayMode.getWidth(), displayMode.getHeight());
} else if (settings.isFullscreen()) {
displayMode = getFullscreenDisplayMode(settings.getWidth(), settings.getHeight(),
settings.getBitsPerPixel(), settings.getFrequency());
if (displayMode == null) {
// Fall back to whatever mode is available at the specified width & height
displayMode = getFullscreenDisplayMode(settings.getWidth(), settings.getHeight(), -1, -1);
if (displayMode == null) {
throw new RuntimeException("Unable to find fullscreen display mode matching settings");
} else {
logger.log(Level.WARNING, "Unable to find fullscreen display mode matching settings, falling back to: {0}", displayMode);
}
}
} else {
displayMode = new DisplayMode(settings.getWidth(), settings.getHeight());
}
int samples = getNumSamplesToUse();
PixelFormat pf = new PixelFormat(settings.getBitsPerPixel(),
settings.getAlphaBits(),
settings.getDepthBits(),
settings.getStencilBits(),
samples,
0,
0,
0,
settings.useStereo3D());
frameRate = settings.getFrameRate();
allowSwapBuffers = settings.isSwapBuffers();
logger.log(Level.FINE, "Selected display mode: {0}", displayMode);
boolean pixelFormatChanged = false;
if (created.get() && (pixelFormat.getBitsPerPixel() != pf.getBitsPerPixel()
||pixelFormat.getAlphaBits() != pf.getAlphaBits()
||pixelFormat.getDepthBits() != pf.getDepthBits()
||pixelFormat.getStencilBits() != pf.getStencilBits()
||pixelFormat.getSamples() != pf.getSamples())){
renderer.resetGLObjects();
Display.destroy();
pixelFormatChanged = true;
}
pixelFormat = pf;
Display.setTitle(settings.getTitle());
Display.setResizable(settings.isResizable());
if (settings.isFullscreen()) {
Display.setDisplayModeAndFullscreen(displayMode);
} else {
Display.setFullscreen(false);
Display.setDisplayMode(displayMode);
}
if (settings.getIcons() != null) {
Display.setIcon(imagesToByteBuffers(settings.getIcons()));
}
Display.setVSyncEnabled(settings.isVSync());
if (created.get() && !pixelFormatChanged) {
renderer.resetGLObjects();
Display.releaseContext();
Display.makeCurrent();
Display.update();
}
if (!created.get() || pixelFormatChanged){
ContextAttribs attr = createContextAttribs();
if (attr != null) {
Display.create(pixelFormat, attr);
} else {
Display.create(pixelFormat);
}
renderable.set(true);
if (pixelFormatChanged && pixelFormat.getSamples() > 1
&& GLContext.getCapabilities().GL_ARB_multisample){
GL11.glEnable(ARBMultisample.GL_MULTISAMPLE_ARB);
}
}
if (settings.isOpenCLSupport()) {
initOpenCL();
}
}
@Override
protected void destroyContext(){
try {
renderer.cleanup();
Display.releaseContext();
Display.destroy();
} catch (LWJGLException ex) {
listener.handleError("Failed to destroy context", ex);
}
}
@Override
public void create(boolean waitFor){
if (created.get()){
logger.warning("create() called when display is already created!");
return;
}
new Thread(this, THREAD_NAME).start();
if (waitFor)
waitFor(true);
}
@Override
public void runLoop(){
// This method is overridden to do restart
if (needRestart.getAndSet(false)) {
try {
createContext(settings);
} catch (LWJGLException ex) {
logger.log(Level.SEVERE, "Failed to set display settings!", ex);
}
listener.reshape(settings.getWidth(), settings.getHeight());
if (renderable.get()) {
reinitContext();
} else {
assert getType() == Type.Canvas;
}
logger.fine("Display restarted.");
} else if (Display.wasResized()) {
int newWidth = Display.getWidth();
int newHeight = Display.getHeight();
settings.setResolution(newWidth, newHeight);
listener.reshape(newWidth, newHeight);
}
super.runLoop();
}
@Override
public void restart() {
if (created.get()){
needRestart.set(true);
}else{
logger.warning("Display is not created, cannot restart window.");
}
}
@Override
public Type getType() {
return Type.Display;
}
@Override
public void setTitle(String title){
if (created.get())
Display.setTitle(title);
}
private ByteBuffer[] imagesToByteBuffers(Object[] images) {
ByteBuffer[] out = new ByteBuffer[images.length];
for (int i = 0; i < images.length; i++) {
BufferedImage image = (BufferedImage) images[i];
out[i] = imageToByteBuffer(image);
}
return out;
}
private ByteBuffer imageToByteBuffer(BufferedImage image) {
if (image.getType() != BufferedImage.TYPE_INT_ARGB_PRE) {
BufferedImage convertedImage = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_INT_ARGB_PRE);
Graphics2D g = convertedImage.createGraphics();
double width = image.getWidth() * (double) 1;
double height = image.getHeight() * (double) 1;
g.drawImage(image, (int) ((convertedImage.getWidth() - width) / 2),
(int) ((convertedImage.getHeight() - height) / 2),
(int) (width), (int) (height), null);
g.dispose();
image = convertedImage;
}
byte[] imageBuffer = new byte[image.getWidth() * image.getHeight() * 4];
int counter = 0;
for (int i = 0; i < image.getHeight(); i++) {
for (int j = 0; j < image.getWidth(); j++) {
int colorSpace = image.getRGB(j, i);
imageBuffer[counter + 0] = (byte) ((colorSpace << 8) >> 24);
imageBuffer[counter + 1] = (byte) ((colorSpace << 16) >> 24);
imageBuffer[counter + 2] = (byte) ((colorSpace << 24) >> 24);
imageBuffer[counter + 3] = (byte) (colorSpace >> 24);
counter += 4;
}
}
return ByteBuffer.wrap(imageBuffer);
}
}
© 2015 - 2025 Weber Informatics LLC | Privacy Policy